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ClinicalTrials.gov public records Last synced May 21, 2026, 11:58 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 98 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: C. Difficile Clear all
Completed No phase listed Observational
View directory record Official record
Conditions
Clostridium Infections
Interventions
Not listed
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 13, 2009 · Synced May 21, 2026, 11:58 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Recurrent C. Difficile Infection
Interventions
Fecal microbiota transplantation ± bezlotoxumab
Drug
Lead sponsor
Alexander Khoruts
Other
Eligibility
18 Years to 100 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 31, 2024 · Synced May 21, 2026, 11:58 PM EDT
Not listed Phase 1 Interventional
View directory record Official record
Conditions
C-difficile
Interventions
Donor microbiota applied via colonoscopy.
Biological
Lead sponsor
Providence Holy Cross Medical Center
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Mission Hills, California
Source: ClinicalTrials.gov public record
Updated Jan 7, 2015 · Synced May 21, 2026, 11:58 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Clostridium Infections
Interventions
GS-CDA1/MDX-1388, normal saline
Biological
Lead sponsor
MassBiologics
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
22
States / cities
Los Angeles, California • Oakland, California • Newark, Delaware + 18 more
Source: ClinicalTrials.gov public record
Updated Feb 8, 2021 · Synced May 21, 2026, 11:58 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Recurrent Clostridium Difficile Infection, Clostridium Difficile Infection, CDI, C.Difficile Diarrhea, C. Diff Colitis, C.Difficile Colitis
Interventions
Vancomycin, Placebo
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
2
States / cities
Madison, Wisconsin • Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 24, 2025 · Synced May 21, 2026, 11:58 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Standard Practice to Prevent Hospital Onset CDI
Other
Lead sponsor
Endeavor Health
Other
Eligibility
Up to 1 Year
Enrollment
148,549 participants
Timeline
2016 – 2018
U.S. locations
1
States / cities
Evanston, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 9, 2019 · Synced May 21, 2026, 11:58 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Clostridium Enterocolitis, Pseudomembranous Colitis, Antibiotic-Associated Colitis
Interventions
Not listed
Lead sponsor
Michael E. DeBakey VA Medical Center
Federal
Eligibility
Not listed
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 9, 2010 · Synced May 21, 2026, 11:58 PM EDT
Terminated Phase 1 Interventional
View directory record Official record
Conditions
Clostridium Difficile Diarrhea
Interventions
PBCLN-003, Placebo
Drug
Lead sponsor
Prolacta Bioscience
Industry
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Idaho Falls, Idaho
Source: ClinicalTrials.gov public record
Updated Oct 18, 2020 · Synced May 21, 2026, 11:58 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Clostridioides Difficile Infection
Interventions
Ridinilazole, Vancomycin
Drug
Lead sponsor
Summit Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
759 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
49
States / cities
Birmingham, Alabama • Sun City, Arizona • Los Angeles, California + 45 more
Source: ClinicalTrials.gov public record
Updated Mar 2, 2023 · Synced May 21, 2026, 11:58 PM EDT
Not listed Phase 1 Interventional
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Fecal Microbiota Transplantation
Biological
Lead sponsor
Jonathan Gisser
Other
Eligibility
2 Years to 21 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2025
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 28, 2023 · Synced May 21, 2026, 11:58 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Clostridium Difficile Infection (CDI)
Interventions
RBX2660, Placebo, Open label RBX2660 (only for confirmed CDI recurrence)
Drug
Lead sponsor
Rebiotix Inc.
Industry
Eligibility
18 Years and older
Enrollment
320 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
60
States / cities
Athens, Alabama • Dothan, Alabama • Phoenix, Arizona + 54 more
Source: ClinicalTrials.gov public record
Updated Jul 9, 2024 · Synced May 21, 2026, 11:58 PM EDT
Withdrawn Not applicable Interventional
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Fecal microbiota
Other
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Months and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2013
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 12, 2013 · Synced May 21, 2026, 11:58 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Bezlotoxumab, Placebo, Antibacterial drug treatment (ABD)
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
1 Year to 17 Years
Enrollment
148 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
21
States / cities
Los Angeles, California • San Francisco, California • Aurora, Colorado + 18 more
Source: ClinicalTrials.gov public record
Updated Jul 26, 2023 · Synced May 21, 2026, 11:58 PM EDT
Withdrawn No phase listed Observational
View directory record Official record
Conditions
Aspergillosis, Candidemia, C. Difficile
Interventions
Not listed
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Oct 26, 2015 · Synced May 21, 2026, 11:58 PM EDT
Terminated Phase 1Phase 2 Interventional Results available
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Fecal microbiota transplant G3 capsules, Oral Vancomycin alone
Biological · Other
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 14, 2021 · Synced May 21, 2026, 11:58 PM EDT
Not yet recruiting Phase 4 Interventional
View directory record Official record
Conditions
Inflammatory Bowel Disease (IBD), Clostridioides Difficile Infection
Interventions
Vancomycin (POC), Fidaxomicin
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 2, 2025 · Synced May 21, 2026, 11:58 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Recurrent Clostridium Difficile Infection
Interventions
RBX2660 (microbiota suspension)
Biological
Lead sponsor
Rebiotix Inc.
Industry
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
13
States / cities
Phoenix, Arizona • Denver, Colorado • Jacksonville, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Nov 12, 2019 · Synced May 21, 2026, 11:58 PM EDT
Withdrawn Phase 4 Interventional
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Fidaxomicin, Placebo
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated May 27, 2014 · Synced May 21, 2026, 11:58 PM EDT
Not listed Phase 2 Interventional
View directory record Official record
Conditions
Clostridium Difficile (C. Difficile)
Interventions
DNV3837
Drug
Lead sponsor
Deinove
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
10
States / cities
Anniston, Alabama • Sacramento, California • Idaho Falls, Idaho + 7 more
Source: ClinicalTrials.gov public record
Updated Sep 6, 2022 · Synced May 21, 2026, 11:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Hospital Infection, Standardized Antibiotic Prescribing Ratio (SAR)
Interventions
Messaging Hospitalists, Usual Care
Other
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
169 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
4
States / cities
Atlanta, Georgia • Johns Creek, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 25, 2026 · Synced May 21, 2026, 11:58 PM EDT
Completed Phase 4 Interventional Results available
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Vancomycin, Fidaxomicin
Drug
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 27, 2017 · Synced May 21, 2026, 11:58 PM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Recurrent C. Difficile Infection
Interventions
Low fecal microbiota dose, Mid fecal microbiota dose, High fecal microbiota dose
Biological
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 100 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 5, 2020 · Synced May 21, 2026, 11:58 PM EDT
Recruiting Phase 3 Interventional
View directory record Official record
Conditions
Clostridium Difficile, Clostridium Difficile Infections, Clostridium Difficile Infection Recurrence, Clostridioides Difficile Infection, Clostridioides Difficile Infection Recurrence, CDI, C. Diff Infection, Recurrent Clostridium Difficile Infection, C.Difficile Diarrhea, Diarrhea Infectious
Interventions
VE303, Placebo
Biological
Lead sponsor
Vedanta Biosciences, Inc.
Industry
Eligibility
12 Years and older
Enrollment
852 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
84
States / cities
Huntsville, Alabama • Chandler, Arizona • Phoenix, Arizona + 73 more
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced May 21, 2026, 11:58 PM EDT
Terminated Phase 1 Interventional
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Fecal Microbiota Transplant, Placebo
Biological
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 12, 2017 · Synced May 21, 2026, 11:58 PM EDT